Premium Material: Made of 304 stainless steel, rust and wear resistant with strong structure, manufactured through strict processes for reliability and durability. 360-Degree Flexible Swivel: Swivel top ring rotates 360 degrees for easy rope handling, prevents rope tangling, and ensures smooth operation. Smooth roller enables excellent rope movement. Compact Design with High Capacity: Size: M15; Wheel diameter: 15mm (0.59"); Wheel width: 6mm (0.23"); Swivel ring width: 11mm (0.43"); Total length: 60mm (2.36"); Maximum load capacity: 35kg (77lbs). A simple yet powerful pulley. Wide Applications: Flexible sliding pulley with high load capacity, suitable for various uses. Ideal for lifting, transmission, or pulling tasks, designed for use with rope or lanyard both indoors and outdoors. Features smooth sliding performance. Quantity: 12 pieces Note: All measurements are manually taken; please allow 1-3cm error. Due to differences in lighting and display, slight color variations may occur. Actual product received may vary slightly.